Invention Grant
US09278470B2 Method to minimize molecular weight drop of poly(L-lactide) stent during processing
有权
减少加工过程中聚（L-丙交酯）支架分子量下降的方法
- Patent Title: Method to minimize molecular weight drop of poly(L-lactide) stent during processing
- Patent Title (中): 减少加工过程中聚（L-丙交酯）支架分子量下降的方法
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Application No.: US14530151Application Date: 2014-10-31
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Publication No.: US09278470B2Publication Date: 2016-03-08
- Inventor: Byron Lambert , Yunbing Wang , James Oberhauser
- Applicant: Abbott Cardiovascular Systems Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Abbott Cardiovascular Systems Inc.
- Current Assignee: Abbott Cardiovascular Systems Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Squire Patton Boggs (US) LLP
- Main IPC: A61L31/06
- IPC: A61L31/06 ; B29C47/00 ; A61L31/04 ; A61L31/14 ; C08J3/28 ; A61F2/82 ; B29D23/20 ; B29L23/20 ; B29L31/00
Abstract:
A method to reduce or minimize the reduction in molecular weight of a stent during processing is disclosed. The stent has a scaffolding including a polymer formulation comprising PLLA and polymandelide. The polymandelide reduces the molecular weight drop during processing, particularly during sterilization. The stent scaffolding can further include one or more additional stabilizing agents that additionally reduce the molecular weight drop during processing.
Public/Granted literature
- US20150054202A1 METHOD TO MINIMIZE MOLECULAR WEIGHT DROP OF POLY(L-LACTIDE) STENT DURING PROCESSING Public/Granted day:2015-02-26
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